Routing Table Report 08:00 +10GMT Fri 18 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 342109
Prefixes after maximum aggregation: 155632
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171292
Total ASes present in the Internet Routing Table: 35737
Prefixes per ASN: 9.57
Origin-only ASes present in the Internet Routing Table: 30920
Origin ASes announcing only one prefix: 14967
Transit ASes present in the Internet Routing Table: 4817
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (22394) 21
Prefixes from unregistered ASNs in the Routing Table: 1336
Unregistered ASNs in the Routing Table: 261
Number of 32-bit ASNs allocated by the RIRs: 1130
Prefixes from 32-bit ASNs in the Routing Table: 1705
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 205
Number of addresses announced to Internet: 2413560320
Equivalent to 143 /8s, 220 /16s and 2 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 140066
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82127
Total APNIC prefixes after maximum aggregation: 27971
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 79743
Unique aggregates announced from the APNIC address blocks: 35766
APNIC Region origin ASes present in the Internet Routing Table: 4275
APNIC Prefixes per ASN: 18.65
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 659
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 589353984
Equivalent to 35 /8s, 32 /16s and 212 /24s
Percentage of available APNIC address space announced: 74.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 136625
Total ARIN prefixes after maximum aggregation: 69929
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109489
Unique aggregates announced from the ARIN address blocks: 44933
ARIN Region origin ASes present in the Internet Routing Table: 14126
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5393
ARIN Region transit ASes present in the Internet Routing Table: 1386
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 787342848
Equivalent to 46 /8s, 237 /16s and 230 /24s
Percentage of available ARIN address space announced: 62.6
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 82325
Total RIPE prefixes after maximum aggregation: 46567
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75666
Unique aggregates announced from the RIPE address blocks: 49066
RIPE Region origin ASes present in the Internet Routing Table: 15313
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7782
RIPE Region transit ASes present in the Internet Routing Table: 2363
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460360704
Equivalent to 27 /8s, 112 /16s and 140 /24s
Percentage of available RIPE address space announced: 74.2
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 31208
Total LACNIC prefixes after maximum aggregation: 7290
LACNIC Deaggregation factor: 4.28
Prefixes being announced from the LACNIC address blocks: 30146
Unique aggregates announced from the LACNIC address blocks: 15939
LACNIC Region origin ASes present in the Internet Routing Table: 1419
LACNIC Prefixes per ASN: 21.24
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80746240
Equivalent to 4 /8s, 208 /16s and 23 /24s
Percentage of available LACNIC address space announced: 53.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7446
Total AfriNIC prefixes after maximum aggregation: 1813
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 5835
Unique aggregates announced from the AfriNIC address blocks: 1836
AfriNIC Region origin ASes present in the Internet Routing Table: 435
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 133
AfriNIC Region transit ASes present in the Internet Routing Table: 94
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21855744
Equivalent to 1 /8s, 77 /16s and 126 /24s
Percentage of available AfriNIC address space announced: 32.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1842 9491 573 Korea Telecom (KIX)
7545 1624 302 87 TPG Internet Pty Ltd
4755 1416 637 164 TATA Communications formerly
17974 1403 459 29 PT Telekomunikasi Indonesia
24560 1113 323 182 Bharti Airtel Ltd., Telemedia
9583 1043 76 487 Sify Limited
17488 950 162 103 Hathway IP Over Cable Interne
4808 939 2034 271 CNCGROUP IP network China169
18101 929 117 141 Reliance Infocom Ltd Internet
9829 898 763 42 National Internet Backbone
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3695 3855 262 BellSouth.net Inc.
4323 2622 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
1785 1787 697 131 PaeTec Communications, Inc.
20115 1527 1534 646 Charter Communications
6478 1511 295 74 AT&T Services, Inc.
7018 1379 6692 893 AT&T Services, Inc.
18566 1303 311 118 Covad Communications Co.
2386 1295 554 935 AT&T Data Communications Serv
11492 1279 236 77 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 542 328 31 Goldenlines main autonomous s
6830 511 1764 317 UPC Broadband
9198 466 267 15 Kazakhtelecom Data Network Ad
34984 463 98 143 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
20940 413 98 319 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 401 1803 314 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1374 255 166 Types of queries are: POCs, o
28573 1217 961 82 Types of queries are: POCs, o
8151 1211 2661 355 Uninet S.A. de C.V.
6503 1177 354 74 Axtel, S.A.B. de C.V.
7303 875 462 129 Telecom Argentina S.A.
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 510 220 98 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 475 37 43 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 760 147 37 LINKdotNET AS number
8452 726 445 11 TEDATA
15475 497 90 12 Nile Online
36992 301 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 150 422 86 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3695 3855 262 BellSouth.net Inc.
4323 2622 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
4766 1842 9491 573 Korea Telecom (KIX)
1785 1787 697 131 PaeTec Communications, Inc.
23456 1705 434 976 32-bit ASN transition
7545 1624 302 87 TPG Internet Pty Ltd
20115 1527 1534 646 Charter Communications
6478 1511 295 74 AT&T Services, Inc.
4755 1416 637 164 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2622 2216 tw telecom holdings, inc.
1785 1787 1656 PaeTec Communications, Inc.
19262 1843 1560 Verizon Online LLC
7545 1624 1537 TPG Internet Pty Ltd
6478 1511 1437 AT&T Services, Inc.
17974 1403 1374 PT Telekomunikasi Indonesia
4766 1842 1269 Korea Telecom (KIX)
4755 1416 1252 TATA Communications formerly
10620 1374 1208 Types of queries are: POCs, o
11492 1279 1202 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T Services, Inc.
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Comcast Cable Communications,
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network Inc.
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/london/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:22 /9:10 /10:26 /11:72 /12:216
/13:444 /14:764 /15:1368 /16:11482 /17:5627 /18:9290
/19:18925 /20:24405 /21:24788 /22:32857 /23:31567 /24:179796
/25:11 /26:17 /27:24 /28:155 /29:93 /30:44
/31:0 /32:106
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3695 BellSouth.net Inc.
6478 1465 1511 AT&T Services, Inc.
4323 1411 2622 tw telecom holdings, inc.
18566 1281 1303 Covad Communications Co.
10620 1265 1374 Types of queries are: POCs, o
11492 1236 1279 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1054 1787 PaeTec Communications, Inc.
23456 988 1705 32-bit ASN transition
6503 959 1177 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:191 2:42 4:13 5:1 8:334 12:2027
13:1 14:393 15:15 16:3 17:8 20:9
23:1 24:1490 27:581 32:56 33:4 34:2
37:1 38:702 40:101 41:2237 44:3 46:613
47:4 49:146 50:93 52:12 55:2 56:2
57:29 58:761 59:474 60:389 61:1017 62:1052
63:1936 64:3776 65:2355 66:4161 67:1784 68:1027
69:2913 70:733 71:402 72:2010 73:1 74:2312
75:292 76:347 77:873 78:706 79:448 80:1057
81:819 82:526 83:470 84:633 85:1048 86:558
87:762 88:355 89:1577 90:157 91:3503 92:494
93:1038 94:1204 95:770 96:448 97:251 98:788
99:33 101:27 107:3 108:88 109:922 110:479
111:691 112:304 113:361 114:477 115:649 116:912
117:671 118:663 119:1012 120:240 121:679 122:1624
123:1051 124:1263 125:1253 128:213 129:150 130:166
131:565 132:104 133:20 134:210 135:49 136:212
137:143 138:292 139:117 140:467 141:203 142:342
143:377 144:484 145:51 146:424 147:198 148:621
149:274 150:153 151:230 152:295 153:180 154:2
155:350 156:173 157:313 158:129 159:373 160:313
161:197 162:273 163:150 164:486 165:336 166:503
167:421 168:736 169:149 170:749 171:69 172:2
173:1323 174:530 175:307 176:1 177:9 178:779
180:800 182:350 183:247 184:210 186:1005 187:809
188:891 189:1048 190:4371 192:5754 193:4793 194:3497
195:2942 196:1188 197:3 198:3497 199:3807 200:5564
201:1579 202:8052 203:8342 204:4025 205:2319 206:2541
207:3005 208:3899 209:3467 210:2580 211:1331 212:1937
213:1728 214:760 215:62 216:4869 217:1629 218:525
219:377 220:1193 221:436 222:310 223:96
End of report
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